Plate-holder.



W. S. WARNOGK.

- PLATE HOLDER.

APPLICATION FILED NOV. 4, 1904.

. r mm W A hm n w M 6% w 6 r m 0 my B 9 4 jm +0 MW .2 M

W. s. WARNOOK. PLATE HOLDER.

APPLICATION I'ILEDIOV. 4, 1904.

Patented Sept. 14, 1909. 2 SHEETS-SHEET 2.

Fly. 2.

172 06']? f0 ldallace v$1 lOarnock B /7.

Fly.15

Z1 ifnesss UNITED STATES T QFl-llltlli.

WALLACE S. VIABNOCK,

OF GHICAGO, ILLINOIS.

PLATE-HOLDER.

To all whom may concern;

it known that l, VALLACE S. llhsnxoon, citizen of the United States, residing at 1 2;. in the county of Geek and State j iois, have invented a: certain new and useful Improvement in llate-l lolders, of wnicl: the following-"is afull, clear, concise, and exact description, reference being had E to the a companyingdrawings, forming a part of this specificatioi'l.

lily invention relates toplate holders used by printers in holding electro-types, stereotypes, etc, and has several objects and features.

Hitherto it has been proposed to provide integrally formed foundation or bed blocks, of conipa 'atively large size, containinggrooves to receive'the bascsof register hooks. It also been proposed to make these foundations of number of smaller block-s, rectangular or square in contour, conformin in size to specially provided blocks that form component parts of registering devices including the movable hook elements. l he solid foundations are made of cast iron, and, in order that the may not crack, the entire foundation is cast without hollow spaces underneath or above, the grooves for re-i ceiving the egister hooks being nachined in the casting block. The objection to providing blocks forming with register hooks the reg tering devices is on account of the expense of construction, the weight, danger of break 3e, and the small range in which the er hooks may be adjusted without bouily changing their positions. I overcome both of these difhculties by forming the foundation or bed of a number of: separable unit-s engaging each other at their bottom portions, whereby they may ie locked into chase but separated from each other at their upper portions, whereby groo are afforded in which he bases of the re ister hoo is may be received as well as too screws or bolts that provided to effect the adjustment of the register hooks. These individual blocks that together form the foundation. spoken of are made hollow on their bottom sides, to lighten the weight of the form.

My invention also contemplates the provision of an improved register hook that is aoaptable for use not only in connection with foundation or bed as l prefer to con.- struct the same, but also in connection with a. foundation that is solid and which is '1 Specification of Letters Patent.

Application filed'November. 4, 1904.

receives the screw is recessed, so that the ends of the spring member that are designed to engage theopposite walls of the containing groove in the plate foundation may be momentarily brought closer to each other, so that the hook base may be inserted into the said groove, whereafter the resiliency of the spring member will cause its ends to engage the said groove without, however, becoming disengaged from the hook base. The top margins of the grooves in the plate foundation or bed preferably slightly overhang, so that the bases of the register hooks will not only be retained by the opposite walls of the grooves in the plate foundation, but normally will be prevented from vertical dis placement, it being necessary to collapse the spring member of the register hook in order to withdraw the base from the containing groove. In this way the register hook is properly engaged with both walls of the containing groove to prevent the register hook from binding, this result being preferably promoted by providing continuations of the spring member that extend longitudh nally of the containing groove.

Another feature of my invention resides in providing a register hook that is adapted so to operate upon the plate whose position is to be adjusted, that thehook in coiipcration with the anchorage or journal for the screw will pull the plate toward the said anchorage or journal. This is accomplished by causing the hook to face the anchorage bearing or point of purchase of the screw. A very useful advantage is obtained by this feature of my invention, in that, no hook actuating element need be provided on some of the hooks, employed for adjusting the position of the plate, on the outside of the plate, the adjusting means being preferably located beneath the upper surface of the plate foundation. In other words, the main screw head is covered by the plate after the parts are assembled. The screw may be provided with an additional head or formation beyond the position of the plate to be adjusted without losing the advantage of this feature of my invention, as the said head need not be provided with a cooperating anchorage for the screw where said head is located. The pulling register hooks are adjusted before the plate is put upon its foundation, whereupon the plate is inserted, the pulling hooks being upon two adjacent sides of the plate, whereafter the pushing hooks are brought into play to lock the plate. The screws of the pulling hooks may be provided with the outside supplemental heads above spoken of to get a very accurate adjustment of the plates after they have been engaged by the register hooks.

I will explain my invention more fully by reference to the accompanying drawings, showing the preferred embodiment thereof, in which-- Figure 1 is a plan view of a form constructed and equipped in accordance with my invention. Fig. 2 is a sectional view of the structure as shown in Fig. 1. Fig. 3 is a plan view of one of the blocks composing the plate foundation. Fig. 4 is a view in elevation, partially in section, of the block shown in Fig. 3. Fig. 5 is an eleva tion, looking from the interior of the form, of a portion of one of the strips that constitutes a separable part of the plate foundation, whereby the size of the plate foundation may be made as small as practicable without depriving the register hooks of their proper cooperation with the plate founda tion, for the purpose of holding the plate in position. Fig. 6 is a sectional view of the structure as shown in Fig. 5. Fig. 7 is an end view of the screw forming a part of a register hook. Fig. 8 is a longitudinal view thereof. Fig. 9 shows, in elevation, the portion of a register hook through which the adjusting screw passes. Fig. 10 is a view on line 1010 of Fig. 9. Fig. 11 is a view on line ll-11 of Fig. 12. Fig. 12 is a plan view of a complete register hook, excepting that the screw is broken. Fig. 13 is an end elevation of the structure shown in Fig. 12. Fig. 14: is a view of the spring member of the base of the register hook. Fig. 15 is a detailed view of one of the plates of the register hook screws, in elevation. Fig. 16 is a plan view of the structure shown in Fig. 15. Fig. 17 is an end view of the structure shown in Figs. 15 and 16. Fig. 18 shows an operating end of a pulling hook in position within containing grooves. Fig. 19 is a plan view of the working end of a pushing hook in position within grooves. Fig. 20 is a plan view of a modified construction of register hook wherein the hook element proper is rotatably mounted upon its base. Fig. 21 is a view in perspective of another form of spring member for the register hook. Fig. 22 is a side elevation illustrating the construction of the base of a hook adapted for association with the member illustrated in Fig. 21. Fig. 23 is a view in perspective of the structure illustrated in Fig. 22.

Like parts are indicated by similar characters of reference throughout the different figures.

A chase 1 has preferably disposed therein the square blocks 2 that are ruled with ordinate and coordinate lines to aid in the registry of the plate 8 that is disposed upon the foundation or bed comprising the blocks 2 that are clamped closely together in a manner well understood. The blocks 2 are preferably of the formation illustrated clearly in Figs. 2, 3 and 4, the said blocks at their lower portions having faces l that constitute meeting or clamping faces, whereby the said blocks may readily be assembled into a unitary foundation to support the said plate. The upper portions of the sides of the blocks are channeled or cut away, so that, when the blocks are assembled, there is provided, longitudinally of the plate foundation or bed and transversely of the plate foundation or bed, a series of grooves 4. that are desirably shaped at their bottoms .to receive and nicely fit the bottom surfaces of the bases of the hooks or jaws 5, the upper portions of the grooves in the plate foundation being margined by shoulders or lips 6, whereby the collapsible, separable, or spring member 6 of the register hooks may be prevented from being withdrawn from the grooves until the longitudinal extensions 7 of the said spring members are moved toward each other by the hand or tweezers, it being these longitudinal extensions 7 that lie beneath the lips 6. The spring portion of the'member 6 is made of strip spring metal. The longitudinal portions 7 of the spring member 6 are adapted not only to lie fully beneath the lips 6, but at the same time partially to lie within the grooves 8 provided in the bases of the register hooks, there being sufficient clearance, however, between the portions 7 and the bottoms of the grooves 8, so that the said portions 7 may be pressed farther into the grooves 8 by tweezers or the like, to enable the withdrawal of the register hooks from the engaging grooves in the plate foun dation. The register hooks may readily be inserted within the grooves to contain the same, particularly where the structure shown in Figs. 21 and 23 is employed, by merely pressing the hook downwardly into position. The register hooks may thus readily be inserted in any portion of the plate foundation. The screws of the register hooks pass through plates 9 and thence into engagement with the bases of the register hooks where the said register hooks are pulling hooks the said plates 9 acting as journals or anchorages. T he screws or threaded shafts of the register hooks Xtend longitudinally of the grooves that contain the same. The plate 9 in each such case acts as a point of purchase for the screw, the said screw being substantially longitudinally immovable with respect to the said plate. Each screw 10 of each pulling hook desirably has two heads 11 upon its ends though I do not wish to be limited to the number, location or character of the heads or other adjusting agencies that are provided for the screws.

In Fig. l the pulling hook a is provided with two heads, while the pullinghook 7) is provided with but one head. The pushing hooks are provided each with a single head, as indicated most clearly in Fig. 8. The heads of the screws constructed to be adapted to the preferred adjusting tool. ln the pulling hooks the hooks proper slope upwardly toward the point of anchorage or connection of the screws. ln the pushing hooks the hooks p 'oper slope upwardly away from the anchorage ot the screws. in the pushing hoe construction the plates 12 are at the very ends of the screws, the screws tending to separate the hooks and said plates l2 in clampin the stereotype or other printing plate in position contrary to es 0 in the pulling the action upon the plat a o 12 are provided hooks. The plates 9 an with central projections 15*) that engaged between adjacent blocks in a manner to prevent the said plates from moving longitudinally or those grooves in which they lie lengthwise. The said plates are also provided witltongues 1 2 which extend towa d the lips 6 ant are engaged beneath the nine to prevent the p from being vertically displaced. The plates 9 and 12 and the bases of the register hooks define tin-cc axes ot rotation tor the screws ot the ister hooks, as the bases ot the register hooks are also prevented troni vertical displ-tu'ement when spring elements are in eiip'a eni i with the lips (3. it it should be desired adjust the plates angularly register l 0 having pivoted jaws, as indicated in may be employed.

ll here it is desired to mini rr/Je occupied by the blocks with recr 16 for engaging the 13, to prevent longitudinal movem plates may be employed. si 7 ing also provided with l ps 17 the r .gister hooks may be properly maintained without the n'ovision of ad'litional blocks 2.

hat I have prov'i L It will be seen ti. printing alate holder including i l a plate-ho d ing aw adapted to rest above a grooved base or bed. automatic mechanism adapted to be passed down into a groove of the bed and operati 1g upon being received by a groove to hold the jaw in relation to the led, said jaw occupying a position transverse to the length of the groove, and mechanism for ettecting the travel of the jaw parallel with the taco of the bed and longitudinally of the roove engaging the holder toward and Irom the plate that to be engaged by the jaw.

li'hile l have shown a plate foundation tea-med of individually constructed blocks that are assembled to make said toundatioin which blocks are grooved along their upper longitudinal edges to form grooves in the plate foundation, in which grooves the bases of register hooks are assembled, I do not wish to be limited to the exact location of said grooves in the said individually con structed blocks as they may elsewhere be located.

l speak herein of effecting the travel of the jaw. meaning thereby that the jaw is moved in directions substantially parallel with the platesupporting surface of the foundation.

lt vill be seen that I have provided a printing plate holder for a grooved foundation or bed comprising a body portion adapt ed to be passed down at any place into a groove, a transverse aw coming above the oundation, and devices separate from and mounted upon said body )Oll'iOll at each side of the jaw and adapted to engage said groove to hold the p nting plate holder to the bed and prevent accidental separation.

It. is obvious that many changes may be made in the device of my invention herein illustrated without departing trom the spirit of the invention, and I do not therefore. wish to be limited to he precise construction shown, but

Having thus described my invention. it claim as new and desire to secure by Letters- Patent l. "a printers registering device including ster hook provided with :1 ba '2 threadisposed, su ntiall as describml.

- }v 1 P m HM n .1 1 4. it .ie tOillUlllurlOn ion a di .ioor. an anchor ate theretor and a strip witl the y; o and l anchorage p )ng loud and vertical d i 1 a :tiug as an abutment 'ereror. the anchorage plate being provided with a projection lat. while the strip 15 is provided with a corresponding lip or projection engaging the aforesaid projection to prevent vertical displacement of the anchorage plate, the said anchorage plate being provided with a projection, while the strip 1.5 is provided with a corresponding recess to engage said latter projection 13 to prevent longitudinal displacement of the anchorage plate, substantially as described.

3. The combination with a grooved plate foundation, of a register hook having its base in the groove of said foundation, said register hook including in its formation a spring member formed of strip spring metal adapted for engagement with both walls of the said groove, the said groove having over hanging lips for engag ng the said spring member to prevent vertical displacement of the register hook, substantially as described.

4. The combination with a grooved plate foundation, of a register hook having its base in the groove of said foundation, said register hook including in its formation a spring member adapted for engagement with both walls of the said groove, the said groove having overhan 'ing lips for engaging the said spring member to prevent vertical displacement of the register hook, the register hook base being grooved to receive therein the portions of the spring member that are also adapted to engage the overhanging lips, into which grooves the engaging portion of said spring member may further be depressed to permit the removal of the register hook, substantially as described.

5. The combination with a plate foundation formed of a plurality of individually constructed blocks channeled or cut away along their sides to afford grooves in the said plate foundation, and register hooks whose bases work within said grooves and have interlocking engagement therewith normally to prevent vertical displacement of the register hooks, contractible elements connected with said bases, whereby the removal of the register hooks may readily be effected, the said blocks being provided with overhanging lips 6 that engage with said contraetible elements to provide the aforesaid interlocking engagement, the said interlocking engagement being had between the base of the register hook and both walls of the receiving groove, substantially as described.

6. The combination with a grooved plate foundation, of a register hook having its base in a groove of said foundation, said register hook including in its formation a spring member formed of strip spring meta-l adapted for engagement with said groove, the said groove having overhanging lips for engaging the said spring member to prevent vertical displacement of the register hook, substantially as described.

7. The combination with a grooved plate foundation, of a register hook having its base in a groove of said foundation, said register book including in its formation a spring member formed of strip spring metal adapted for engagement with said groove, the said groove having an overhanging lip for engaging the said spring member to prevent vertical displacement of the register hook, substantially as described.

8. The combination with a grooved plate foundation, of a register hook having its base in a groove of said foundation, said register hook including in its formation a spring member formed of strip spring metal adapted for engagement with said groove, the plate-holding jaw being transverse to the length of the groove, there being means for securing the plate holder in various positions it may occupy along the groove, whereby the plate holder may be moved to different operative positions along the groove toward and from the plate to be held, substantially as described.

9. In combination with a supporting bed for printing plates having slots with under out and shouldered sides and walls downwardly converging from the under cut portions, a clamp device for engaging and holding printing plates to said bed having a spring actuated engaging device composed of similar oppositely placed bent arms adapted to come in contact with the opposite converging walls of the slot and free bent ends adapted to come under the shouldered portions of the said slot.

10. In combination with a supporting bed for printing plates having slots with under cut and shouldered sides and walls downwardly extending from the under cut portions, a clamp device for engaging and hold ing printing plates to said bed having a spring actuated engaging device composed of similar oppositely placed bent arms adapted to come in contact with the opposite walls of the slot and free bent ends adapted to come under the shouldered portions of the said slot.

11. The combination with a plate founda tion having grooves therein provided with an undercut shouldered side wall, of a register hook having its base in one of said grooves, said register hook being provided with means for longitudinal adjustment and spring actuated means for engaging under the shoulder of said side wall for retaining the hook within the groove.

12. A printing plate holder including a base adapted to be passed down into a grooved foundation or bed, a plate holding jaw coming above the foundation, and spring mechanism for holding the aw in relation to the bed, the plate-holding jaw being transverse to the length of the groove, there being means for securing the plate holder in various positions it may occupy along the groove, whereby the plate holder may be moved to different operative positions along the groove toward and from the plate to be held.

13. A printing plate holder including a base adapted to be passed down into a groov d foundation or bed, a traveling plate holding jaw coming above the. foundation, spring mechanism for holding the jaw in re lation to the bed, and mechanism for effecting the travel of the jaw in directions substantiall parallel with the plate-supporting surface of the foundation.

l t. A printing plate holder including a base adapted to be passed down into a grooved foundation or bed, a traveling plate holding jaw coming above the foundation, mechanism for holding the jaw in relation to the bed, and mechanism for effecting the travel of the jaw together with the base of the ja in directions substantially parallel with the plate-supporting surface of the foundation.

15. A printing plate holder including a base adapted to be passed down into a grooved foundation or bed, a traveling plateholding jaw coming above the foundation, automatically operated mechanism for holding the jaw in relation to the bed, and mech anism for effecting the travel of the jaw together with the base of the jaw in directions substantially parallel with the plate-sin porting surface of the foundation, the mechanis 1 for holding the jaw in relation to the bed acting automatically independently of the mechanism that serves to effect the travel of the aw.

16. A printing plate holder including a base adapted to be passed down into a grooved foundation or bed, a traveling plate holding jaw coming above the foundation, spring mechanism for holding the jaw in re lation to the bed, and mechanism for effect ing the travel of the jaw together with the base of the jaw in directions substantially parallel with the platc-supporting surface of the foundation.

lT. A printing plate holder including a base adapted to be passed down into a grooved foundation or bed, a plate holding jaw coming above the foundation, and a spring device provided upon each side of the base of the jaw and engaging the sides of the groove into which the base of the jaw is inserted for holding the jaw in relation to the bed.

A printing plate holder including a base adapted to be passed down into a grooved foundation or bed, a traveling plate holding jaw coming above the foundation, a

spring device provided upon each side of the base of the jaw and engaging the sides of the groove into which the base of the jaw in directions substantially parallel with the plate-supporting surface of the foundation is inserted for holding the jaw in relation to the bed, and mechanism for effecting the travel of the jaw.-

19. A. printing plate holder including a base adapted to be passed down into a grooved foundation or bed, a traveling plate holding jaw coming above the foundation, a spring device provided upon each side of the base of the jaw and engaging the sides of the groove into which the base of the jaw is inserted for holding the jaw in relation to the bed, and mechanism for effecting the travel. of the jaw in directions substantially parallel with the plate-supporting surface of the foundation together with the base of the jaw.

'20. A printing plate holder including a base adapted to be passed down into a grooved foundation or bed, a traveling plate holding jaw coming above the foundation, mechanism for holding the jaw in relation to the bed, and mechanism for effecting the travel of the jaw in directions substantially parallel with the plate-supporting surface of the foundation, the mechanism that effects the travel of the jaw being adapted to engage the plate foundation, thereby to secure purchase upon the plate foundation to effect the travel of the jaw.

21. A printing plate holder including a base adapted to be passed down into a grooved foundation or bed, a traveling plate holding jaw coming above the foundation, automaticill operated mechanism for holding the aw in relation to the bed, and mechanism for effecting the travel of the jaw in directions substantially parallel with the plate supporting surface of the foundation, the mechanism that effects the travel of the jaw being adapted to engage the plate foundation, thereby to secure purchase upon the plate foundation to effect the travel of the jaw, the mechanism. for holding the jaw in relation to the bed acting automatically independently of the mechanism that serves to effect the travel of the jaw.

2'3. A printing plate holder including a base adapted to be passed down into a grooved foundation or bed, a traveling plate holding jaw coming above the foundation,

spring mechanism for holding the aw in relation to the bed, and mechanism for effecting the travel of the jaw in directions substantially parallel with the plate-su 'iporting surface of the foundation, the mechanism that effects the travel of the jaw being adapted to engage the plate foundation, thereby to secure purchase upon the plate foundation to effect the travel of the jaw.

A printing plate holder including a base adapted to be passed down into a grooved foundation or bed, a traveling plate iolding aw coming above the foundation, a spring device provided upon each side of the base of the jaw and engaging the sides of the groove into which the base of the jaw is inserted for holding the jaw in relation to the bed, and mechanism for effecting the travel of the jaw in directions substantially parallel with the plate-supporting surface of the foundation, the mechanism that effects the travel of the jaw being adapted to engage the plate foundation, thereby to se cure purchase upon the plate foundation to effect the travel of the jaw.

2i. A printing plate holder including a base adapted to be passed down into a grooved foundation or bed, a traveling plate holding jaw coming above the foundation, mechanism for holding the jaw in relation to the bed, and mechanism for effecting the travel of the jaw together with the base of the jaw in directions substantially parallel with the plate-supporting surface of the foundation, the mechanism that is provided for effecting the travel of the jaw together with its base being adapted to engage the foundation, thereby to secure purchase to effeet the travel of the jaw and base thereof along the grooves.

25. A printing plate holder including a base adapted to be passed down into a grooved foundation or bed, a traveling plate holding jaw coming above the foundation, automatically operated mechanism for holding the aw in relation to the bed, and mech anism for effecting the travel of the jaw together with the base of the jaw in directions substantially parallel with the plate-supporting surface of the foundation, the mechanism that is provided for effecting the travel of the jaw together with its base being adapted to engage the foundation, thereby to secure purchase to effect the travel of the jaw and base thereof along the grooves,

the mechanism for holding the jaw in relation to the bed acting automatically inde pendently of the mechanism that serves to effect travel of the jaw.

26. A printing plate holder including a base adapted to be passed down into a grooved foundation or bed, a traveling plate holding jaw coining above the foundation, spring mechanism for holding the jaw in relation to the bed, and mechanism for effecting the travel of the jaw together with the base of the jaw in directions substantially parallel with the plate-supporting surface of the foundation, the mechanism that is provided for effecting the travel of the jaw together with its base being adapted to engage the foundation, thereby to secure purchase to efiect the travel of the jaw and base thereof along the grooves.

2-7. A printing plate holder including a base adapted to be passed down into a grooved foundation or bed, a traveling plate holding jaw coming above the foundation, a spring device provided upon each side of the base of the jaw and engaging the sides of the groove into which the base of the jaw is inserted for holding the ja in relation to the bed, and mechanism for effecting the travel of the' jaw together with the base of the jaw in directions substantially parallel with the plate-supporting surface of the foundation,

the mechanism that is provided for effecting the travel of the jaw together with its base being adapted to engage the foundation, thereby to secure purchase to effect the travel of the jaw and base thereof along the grooves.

28. A printing plate holder including a base adapted to be passed down into a grooved foundation or bed, plate-clamping mechanism including a plateholding jaw coming above the foundation, and an automatically operating device provided in connection with the plate holder adapted to engage a groove and thereby secure the holder from separation from the foundation, the automatically operating mechanism acting independently of the clamping mechanism.

29. A printing plate holder including a base adapted to be passed down into a grooved foundation or bed, a traveling plate holding j aw coming above the foundation, a device provided in connection with the plate holder adapted to engage a groove and thereby secure the holder from separation from the foundation, and mechanism for effecting the travel of the jaw in directions substantially parallel with the plate supporting surface of the foundation, said mechanism being adapted to engage the foundation, thereby to secure purchase and effecttravel of the jaw and the base thereof along the grooves.

30. The combination with a plate foundation provided with two sets of parallel grooves, one set of parallel grooves being transversely disposed with respect to the other set of parallel grooves, plate holding jaws provided with bases adapted to be passed down into said grooves, and mechanism for effecting the travel of the plate holding jaws in directions substantially parallel with the plate-supporting surface of the foundation.

31. The combination with a plate foundation provided with two sets of parallel grooves, one set of parallel grooves being transversely disposed with respect to the other set of parallel grooves, plate-holding jaws provided with bases adapted to be passed down into said grooves, mechanism for effecting the travel of the plate holding jaws in directions substantially parallel with the plate-supporting surface of the foundation, and mechanism for holding the bases within the grooves.

32. The combination with a plate foundation provided with two sets of parallel grooves, one set of parallel grooves being transversely disposed with respect to the other set of parallel grooves, clamping devices including plate-holding aws provided with ba adapted to be passed down into said grooves, and automatically operated mechanism for holding the bases within the grooves and operating independently of the clamping devices.

33. The combination with a plate foundation provided with two sets of parallel grooves, one set or" parallel grooves being transversel disposed with respectto the other set of parallel grooves, plate holding jaws provided with bases adapted to be passed down into said grooves, mechanism for effecting the travel oi the plate holding jaws in directions substantially 'iarallel with the plate-supporting surface of the found: tion, and autoinaticall operated mechanism for holding the bases within the grooves and operating independently of the mechanism that etlects the travel of the jaws.

3a. The combination with a plate foundation provided with two sets of parallel grooves, one set of paallel grooves liieing transversely disposed with respect to the other set of parallel grooves, plate holding jaws provided with bases adapted to be pass d down into said grooves, and spring mechanism for holding the bases within the grooves.

The combination with a pla to foundation provided with two sets of parallel grooves, one of pa allel grooves being transversely disposed with respect to the other set of parallel grooves, plate holding jaws provided with bases adapted to be passed down into said grooves. mechanism for eil ecting the travel of the plate holding jai in directions substantiall parallel with the plate-supporting surface oftho foundation, and mechanism for holding the bases within the grooves.

36. A printing plate supporting bed or foundation having grooves provided with shouldered sides, in combination with a printing plate holde including a base adapted to be passed down into grooves of the foundation. a plate-holding jaw coining above the foundation, mechanism for eiiecting the travel of tl e jaw. and ai'itoinaticall operated mechanism cooperating with the shouldered portion of a groove for holding the jaw in relation to the foundation and operating independently of ti e mechanism that etl'ects the travel of the aw.

3T. X printing plate supporting t foundation ;rooves provided with shoulder-en co; b printin plate holder ed to be p ed down into i v the tonndation, a plate-lmlding jaw connr above the foundation, mechanism cooperating with the slnuildered portion of a groove for holding the jaw in relation to the tonir dation, and mechanism for etl'ecting the 1 l the ten ation, a plate-holding aw coining above lilt liouiulatii'in, automatically operated mechanism cooperating with the shouldered iortion of a groove for holdin the l t a:

aw in relation to the foundation, and nieclr anisin for eitlecting the travel of the jaw over the surface of the 'foi'indution, said automatically operating mechanism acting independentlv of "he mechanism emploved to L olilect the travel of the aw 3-9. A printing plate holder including a base ada 'ted to be assed down into a undatioi grooved to n oed a traveling platei l hol ling w coming aoo the foundation,

t jaw in relation a iisin for eti'ecting the '1' directions substantially r 1 z -l arallel with do plze-supporting surface o i the foundation.

mechanism 1 o the bed. a

a e! ot the .0. 3t printing plate holder including a base adapted to be down into a grooved foundation or ban, 2 traveling plate holding jaw coming above the "foundation, automatically operated niecl anism for holding the in role ion to the bed, and mechanism for eil'ecting the travel of the jaw in directions snbstantiallv parallel with the plate-supporting surface of the foundation, said automatically operating mechanism act- 'ig independentlv of the mechanism (711- l eli'ect the travel of the jaw.

iinting plate supporting bed or having grooves p o ided with sides in combination with plate holder including :1 base adapt- "sod down into the grooves of nda ion, a plate-holding jaw coming he foundation. mechanism cooperatshouldered portion of a groove or uolding the jaw in relation to the founn, and llltcllzllllfilll tor etlecting the the together with its base in "ctions snbstantiall parallel with the printing plate pporting bed or ioundation having ated mechanism c' operating with the shouldered portion of the groove for holding the to the foundation, and mech- (.UUQ' the travel of the aw lt J \l h its base in directions substantially parallel with the plate-supporting surface of the foundation, said automatically operating mechanism acting independently of the mechanism employed to effect the travel of the jaw.

43. A printing plate holder for a grooved foundation or bed comprising a body portion adapted to be passed down at any place into a groove, a transverse jaw coming above the foundation and adapted to come between the printing plates and to engage an edge thereof, and a spring actuated device mounted upon said body portion and adapted to automatically engage said groove and hold the printing plate holder to the bed and prevent accidental separation.

er. A printing plate holder for agrooved foundation or bed comprising a body portion adapted to be passed down at any place into a groove, a transverse jaw coming above the foundation and adapted to come between the printing plates, and a spring actuated device mounted upon said body portion and adapted to automatically engage said groove and hold the printing plate holder to the bed and prevent accidental separation.

-15. A printing plate holder for a grooved foundation or bed comprising a body portion adapted to be passed down at any place into a groove, a transverse aw coming above the foundation and adapted to come between the printing plates and to engage an edge thereof, and a spring actuated device mounted upon said body portion and coming directly beneath the printing plate engaged and adapted to automatically engage said groove and hold the printing plate holder to the bed and prevent accidental separation.

46. A printing plate holder including a plate-holding jaw adapted to rest above a grooved base, and spring mechanism for holding the plate holding jaw in relation to the bed and adapted to be passed downward into a groove of the bed, the plate-holding jaw being transverse to the length of the groove, there being means for securing the plate holder in various positions it may 00- cupy along the groove, whereby the plate holder may be moved to different operative positions along the groove toward and from the plate to be held.

47. A printing plate holder including a traveling plate-holding jaw adapted to overlie a grooved foundation or bed, spring means for holding it in engagement with the groove into which the spring means is adapted to be passed down, and mechanism for effecting the travel of the jaw in directions substantially parallel with the plate-supporting surface of the foundation.

48. A printing plate holder including a traveling plate-holding jaw adapted to overlie a grooved foundation or bed, the base of the jaw being adapted to be passed down into a groove of the foundation or bed and provided with spring means for holding it in engagement with the groove into which it is passed down, and mechanism for effecting the travel of the jaw together with the base thereof in directions substantially parallel with the plate-supporting surface of the foundation.

4!). A printing plate holder having clamp ism and serving to hold the plate holding jaw adapted to rest above a grooved base, and automatically operatedmechanism acting independently of the clamping mechanism and serving to hold the plate-holding jaw in relation to the bed and adapted to be passed downward into a groove of the bed.

50. A printing plate holder including a traveling plate-holding jaw adapted to overlie a grooved foundation or bed, the base of the jaw being adapted to be passed down into a groove of the foundation or bed and provided with means for holding it in engagement with the groove into which it is passed down, and mechanism for effecting the travel of the jaw in directions substantially parallel with the plate-supporting surface of the foundation.

51. A printing plate holder including a traveling plate-holding jaw adapted to overlie a grooved foundation or bed, the base of the being adapted to be passed down into a groove of the foundation or bed and provided with means for holding it in engagement with the groove into which it is passed down, and mechanism for effecting the travel of the jaw together with the base thereof in directions substantially parallel with the plate-supporting surface of the foundation.

52. A printing plate holder including a plate-holding jaw adapted to rest above a grooved base or bed, automatic mechanism adapted to be passed down into a groove of the bed and operating upon being received by a groove to hold the jaw in relation to the bed, said jaw occupying a position transverse to the length of the groove, and mechanism for effecting the travel of the jaw parallel with the face of the bed and longitudinally of the groove engaging the holder toward and from the plate that is to be engaged by the jaw.

53. A printing plate holder including a plate-holding jaw adapted to rest above a grooved base 01' bed, automatic mechanism adapted to be passed down into a groove of the bed and operating upon being received by a groove to hold the aw in relation to the bed, said jaw occupying a position transverse to the length of the groove, the plate holder being bodily movable lengthwise of the groove to permit the aw to be moved toward and from the plate that is to be engaged by the jaw, there being means for securing the plate holder in various positions it may occupy along the groove.

54. A printing plate holder including a plate-holding jaw adapted to rest above a grooved base or bed, automatic mechanism adapted to be passed down into a groove of the bed and operating upon being received 5 by a groove to hold the jaw in relation to the bed, said jaw occupying a position transverse to the length of the groove, the plate holder being bodily movable lengthwise of the groove to permit the jaw to be moved toward and from the plate that is to be engaged by the jaw, there being means for securing the plate holder in various positions it may occupy along the groove, and mechanism for effecting the travel of the jaw parallel with the face of the bed and longitudinally of the groove engaging the holder.

In Witness whereof, I hereunto subscribe my name this first day of November A. 1)., 1904.

WALLACE S. XVARNOGK.

lVitnesses G. L. GRAGG,

LEON S'rnorr. 

